Positive and negative pressure plastic uptake forming device

Abstract

The utility model relates to the field of plastic product processing, and discloses a positive and negative pressure plastic uptake forming device which comprises a plastic uptake machine, a supporting frame is fixedly connected to the front side of the plastic uptake machine, a roller is rotationally connected to the inner wall of the front side of the supporting frame, sliding grooves are formed in the upper side and the lower side of the supporting frame, and an adjusting mechanism is arranged on the outer side of the supporting frame. And the adjusting mechanism comprises an adjusting assembly and a moving assembly, the adjusting assembly comprises a moving plate, the moving plate slides on the inner wall of the sliding groove, and a heating pipe is arranged on the inner wall of the moving plate. According to the plastic uptake forming device, the supporting frame, the heating pipe and the adjusting mechanism are used in cooperation, in the plastic uptake forming process, when a plastic sheet is heated, the distance between the two movable plates is adjusted, the threaded rod is rotated to drive the adjusting plate to control the heat outlet holes in the bottom plate, and heat output is accurately adjusted; therefore, energy consumption is effectively reduced, and the energy-saving and environment-friendly level in the production process is improved.

Description

Technical Field

[0001] The utility model relates to the field of plastic product processing, in particular to a positive and negative pressure plastic suction molding device. Background Art

[0002] As an important plastic processing technology, blister molding has a wide range of applications in modern industrial production. It was originally used to produce simple plastic products, such as plastic packaging trays. Today, blister molding products have been widely used in packaging, automobiles, electronics, medical treatment, toys, stationery and many other industries.

[0003] With the continuous improvement of various industries' requirements for the quality, precision and production efficiency of plastic products, as well as the emphasis on energy conservation and environmental protection, the market has put forward higher demands on positive and negative pressure blister forming devices.

[0004] During the blister forming process, the heating of plastic sheets consumes a lot of energy. Traditional heating methods, such as resistance heating, will dissipate a large amount of heat into the surrounding environment during the heating process, resulting in low energy utilization efficiency and energy waste. Therefore, a positive and negative pressure blister forming device is proposed to solve the above problems. Utility Model Content

[0005] In order to make up for the above deficiencies, the utility model provides a positive and negative pressure plastic blister forming device, which aims to improve the problem in the prior art that "when heating the plastic sheet, a large amount of heat will be lost to the surrounding environment, resulting in energy waste."

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions: a positive and negative pressure plastic forming device, including a plastic forming machine, a support frame fixedly connected to the front side of the plastic forming machine, a roller rotatably connected to the inner wall of the front side of the support frame, a slide groove is provided on the upper and lower sides of the support frame, an adjustment mechanism is provided on the outer side of the support frame, the adjustment mechanism includes an adjustment component and a moving component, the adjustment component includes a moving plate, the moving plate slides on the inner wall of the slide groove, a heating tube is provided on the inner wall of the moving plate, a bottom plate is fixedly installed on the lower side of the moving plate by bolts, a threaded rod is threadedly connected to the rear side of the bottom plate, the front side of the threaded rod is rotatably connected to the adjustment plate, the adjustment plate slides on the upper side of the bottom plate, and an adjustment hole is provided on the outer side of the adjustment plate.

[0007] As a further description of the above technical solution:

[0008] The moving assembly includes a bidirectional screw, the middle part of which is rotatably connected to the right side of the support frame, the outer side of the bidirectional screw is threadedly connected to the right inner wall of the moving plate, the outer side of the middle part of the bidirectional screw is fixedly connected to a crank, and the left side of the crank is set on the inner wall of the support frame.

[0009] As a further description of the above technical solution:

[0010] A heat outlet hole is formed on the lower side of the bottom plate.

[0011] As a further description of the above technical solution:

[0012] The movable plates are provided in two groups, and the two groups of movable plates are symmetrically arranged with the center line of the bidirectional screw as the symmetry axis.

[0013] As a further description of the above technical solution:

[0014] The upper parts of the left and right sides of the adjustment plate are attached to the inner wall of the movable plate.

[0015] As a further description of the above technical solution:

[0016] A sliding rod is provided on the left side of the support frame, and the sliding rod penetrates and slides on the left inner walls of the two groups of movable plates.

[0017] As a further description of the above technical solution:

[0018] A limiting assembly is provided on the inner wall of the support frame near the crank, and the limiting assembly includes an extrusion plate, which is slidably connected to the inner wall of the support frame, and the lower side of the extrusion plate is attached to the upper side of the crank. The top of the extrusion plate is rotatably connected to a pull rod, and the pull rod slides on the inner wall of the support frame. The upper side of the extrusion plate is elastically connected to the support frame through a compression spring, and one end of the compression spring is fixedly connected to the upper side of the extrusion plate, and the other end of the compression spring is fixedly connected to the inner wall of the support frame.

[0019] As a further description of the above technical solution:

[0020] The pull rod is configured in an L shape.

[0021] The utility model has the following beneficial effects:

[0022] 1. In the utility model, through the coordinated use of the support frame, the heating tube and the adjustment mechanism, when the plastic sheet is heated during the vacuum forming process, the distance between the two sets of movable plates is adjusted, and the adjusting plate is driven by the rotation of the threaded rod to control the heat outlet holes on the bottom plate, thereby accurately adjusting the heat output, thereby effectively reducing energy consumption and improving the energy saving and environmental protection level of the production process.

[0023] 2. In the present invention, by using the limit assembly and the crank handle in conjunction, after the distance between the two sets of movable plates is adjusted, the crank handle is squeezed by the squeezing plate under the action of the compression spring to increase the friction, thereby improving the stability of the two sets of movable plates. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1This is a schematic diagram of the three-dimensional structure of the overall device in the utility model;

[0025] Figure 2 This is a rear perspective structural diagram of the support frame in the present invention;

[0026] Figure 3 This is a schematic diagram of the three-dimensional structure of the bidirectional screw and the crank in the present utility model;

[0027] Figure 4 This is a schematic diagram of the split three-dimensional structure of the midsole plate and the adjustment plate of the utility model;

[0028] Figure 5 For this utility model Figure 3 Schematic diagram of the three-dimensional structure at A in the middle.

[0029] Legend:

[0030] 1. Vacuum forming machine; 2. Support frame; 3. Roller; 4. Slide; 51. Moving plate; 52. Threaded rod; 53. Bottom plate; 54. Adjustment plate; 55. Adjustment hole; 6. Heating tube; 61. Bidirectional screw; 62. Crank handle; 71. Extrusion plate; 72. Pull rod; 73. Compression spring. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0032] Reference Figure 1 、 Figure 2 and Figure 4, the utility model provides an embodiment: a positive and negative pressure blister forming device, including a blister machine 1, which is the main body of the positive and negative pressure blister forming device and is the key equipment for realizing the blister forming process. The blister machine 1 is fixedly connected to a support frame 2 on the front side, which provides a basic structure for installing and supporting the roller 3 and the adjustment mechanism to ensure that they can maintain a stable position and state during operation. A mounting frame is provided on the front side for installing the roller for loading the plastic sheet. The inner wall of the front side of the support frame 2 is rotatably connected to the roller 3, which is mainly used to convey the plastic sheet. The support frame 2 is provided with a slide groove 4 on the upper and lower sides, which provides a clear The moving path and guide make the movable plate 51 slide only along the direction of the slide groove 4, thereby ensuring the accuracy and stability of the movable plate 51 when adjusting the position. An adjustment mechanism is provided on the outside of the support frame 2, and the adjustment mechanism includes an adjustment component and a moving component. The adjustment component includes a movable plate 51. The interior of the movable plate 51 is hollow and serves as an installation carrier for the heating tube 6, providing a fixed position for the heating tube 6. By sliding on the inner wall of the slide groove 4, the position of the heating tube 6 on the support frame 2 can be adjusted, thereby realizing heating control of the plastic sheet and effectively reducing energy consumption. The movable plate 51 slides on the inner wall of the slide groove 4.

[0033] Furthermore, the movable plate 51 is provided with two groups, and the two groups of movable plates 51 are symmetrically arranged with the center line of the bidirectional screw 61 as the axis of symmetry, which can heat the upper and lower parts of the plastic sheet. The inner wall of the movable plate 51 is provided with a heating tube 6. The heating tube 6 is input with energy such as electricity, and uses the internal heating element (such as a resistance wire) to convert the electrical energy into thermal energy to provide the required heat for softening the plastic sheet. This technology is existing technology, so it is not described in detail. The lower side of the movable plate 51 is fixed with a bottom plate 53 by bolts to seal the lower side of the movable plate 51. At the same time, the movable plate 51, the bottom plate 53 and the adjustment plate 54 are set to thermal insulation material to prevent heat loss. Heat outlet holes are opened through the lower side of the bottom plate 53, and multiple groups of heat outlet holes are evenly arranged as channels for heat output. The bottom plate 53 cooperates with the adjustment plate 54 to control the heat outflow mode and amount by blocking and adjusting the heat outlet holes by the adjustment plate 54 to meet different heating requirements. At the same time, it can improve energy utilization efficiency and reduce heat loss to the surrounding environment.

[0034] Reference Figure 2 - Figure 4The rear side of the bottom plate 53 is threadedly connected to a threaded rod 52. By rotating the threaded rod 52, the adjusting plate 54 can be driven to move back and forth on the upper side of the bottom plate 53. The relative position relationship between the adjusting plate 54 and the heat outlet hole on the bottom plate 53 can be controlled, thereby adjusting the size and direction of the heat flowing out of the heat outlet hole, thereby achieving fine control of the heat output. The front side of the threaded rod 52 is rotatably connected to the adjusting plate 54. Through the connection with the threaded rod 52, the adjusting plate 54 moves under the drive of the threaded rod 52, and the adjusting plate 54 slides on the upper side of the bottom plate 53. An adjusting hole 55 is opened on the outside of the adjusting plate 54. When the adjusting plate 54 moves, the degree of overlap between the adjusting hole 55 and the heat outlet hole will change, thereby changing the amount and direction of heat passing through, thereby achieving precise adjustment of the heating effect of the plastic sheet and effectively reducing energy consumption.

[0035] Reference Figure 1 - Figure 3 The movable assembly includes a bidirectional screw 61. When the crank 62 is rotated, the two sets of movable plates 51 can move in opposite directions or approach each other at the same time. The distance between the two sets of heating tubes 6 can be adjusted according to the width of the plastic sheet and the heating requirements, so as to achieve uniform heating of plastic sheets of different widths or concentrated heating of specific areas, effectively reducing energy consumption and improving the practicality of the device. The middle part of the bidirectional screw 61 is rotatably connected to the right side of the support frame 2, and the outer side of the bidirectional screw 61 is threadedly connected to the right inner wall of the movable plate 51. The outer side of the middle part of the bidirectional screw 61 is fixedly connected to the crank 62. By rotating the crank 62, the position of the movable plate 51 can be adjusted conveniently and quickly. The left side of the crank 62 is set on the inner wall of the support frame 2, and the upper parts of the left and right sides of the adjusting plate 54 are attached to the inner wall of the movable plate 51 for limiting the adjusting plate 54, thereby ensuring the stability of the adjusting plate 54. A sliding rod is provided on the left side of the support frame 2, which slides through the inner wall of the left side of the two sets of movable plates 51 to improve the stability of the two sets of movable plates 51.

[0036] Reference Figure 3 and Figure 5The inner wall of the support frame 2 near the crank 62 is provided with a limit assembly, which includes an extrusion plate 71, the lower side of which is set to rubber material. Under the action of the compression spring 73, the crank 62 is squeezed and limited to prevent the crank 62 from rotating on its own due to vibration or other reasons during operation, thereby ensuring the position stability of the movable plate 51 after adjustment. The extrusion plate 71 is slidably connected to the inner wall of the support frame 2, and the lower side of the extrusion plate 71 is attached to the upper side of the crank 62. The top of the extrusion plate 71 is rotatably connected to the pull rod 72, which provides an operating handle for the operator to conveniently pull the extrusion plate 71 upward to unlock the crank 62. The pull rod 72 is set to L When the lever 72 is unlocked, the operator can lock the latch and lock the latch to unlock the latch, so that the latch will be locked. When the lever 72 is unlocked, the operator can lock the latch and lock the latch to unlock the latch. The unlock operation is simple, and the operation is simple and convenient. The pull rod 72 slides on the inner wall of the support frame 2, and the upper side of the extrusion plate 71 is elastically connected to the support frame 2 through the compression spring 73. One end of the compression spring is fixedly connected to the upper side of the extrusion plate 71, and the other end of the compression spring is fixedly connected to the inner wall of the support frame 2, providing a downward elastic force for the extrusion plate 71, so that the extrusion plate 71 always maintains an extrusion state on the crank 62, ensuring that the crank 62 will not rotate easily when not operated by humans. At the same time, the elasticity of the compression spring 73 also enables a certain buffering and reset function when operating the pull rod 72, thereby improving the reliability and stability of the limit assembly.

[0037] Working principle: When in use, the operator rotates the crank 62 according to the width of the plastic sheet and the heating requirements, driving the bidirectional screw 61 to rotate. When the bidirectional screw 61 rotates, the two sets of movable plates 51 will move or approach in opposite directions at the same time.

[0038] During the movement of the movable plate 51, its left inner wall slides along the slide bar on the left side of the support frame 2. The slide bar guides and stabilizes the movable plate 51, ensuring that the movable plate 51 can move smoothly in the slide groove 4 without deviation or shaking, thereby ensuring that the heating tube 6 can be accurately adjusted to the desired position.

[0039] In order to accurately control the output of heat, when the heat level needs to be adjusted, the threaded rod 52 on the rear side of the base plate 53 is rotated so that the adjustment plate 54 driven by the threaded rod 52 slides on the upper side of the base plate 53, so that the degree of overlap between the adjustment hole 55 and the heat outlet hole on the lower side of the base plate 53 will change.

[0040] In this way, the heating temperature of the plastic sheet can be accurately controlled according to the material, thickness and required molding requirements of the plastic sheet, ensuring that the plastic sheet can reach a suitable softening state for subsequent blister molding operations, while also improving energy utilization efficiency and reducing heat loss to the surrounding environment.

[0041] When the crank 62 needs to be adjusted again, the operator pulls the pull rod 72 upward, and the pull rod 72 drives the extrusion plate 71 to move upward to overcome the elastic force of the compression spring 73, so that the extrusion plate 71 is separated from the crank 62. At this time, the crank 62 can rotate freely to adjust the position of the movable plate 51.

[0042] After the adjustment is completed, the pull rod 72 is released, and the extrusion plate 71 moves downward again under the action of the compression spring 73 and fits on the crank 62 again, limiting the crank 62 and ensuring that the position of the moving plate 51 is stable during operation.

[0043] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A positive and negative pressure blister forming device, comprising a blister forming machine (1), characterized in that: The front side of the blister machine (1) is fixedly connected to a support frame (2), the inner wall of the front side of the support frame (2) is rotatably connected to a roller (3), the upper and lower sides of the support frame (2) are provided with a slide groove (4), the outer side of the support frame (2) is provided with an adjustment mechanism, the adjustment mechanism includes an adjustment component and a moving component, the adjustment component includes a moving plate (51), the moving plate (51) slides on the inner wall of the slide groove (4), the inner wall of the moving plate (51) is provided with a heating pipe (6), the lower side of the moving plate (51) is fixedly installed with a bottom plate (53) by bolts, the rear side of the bottom plate (53) is threadedly connected to a threaded rod (52), the front side of the threaded rod (52) is rotatably connected to an adjustment plate (54), the adjustment plate (54) slides on the upper side of the bottom plate (53), and the outer side of the adjustment plate (54) is penetrated by an adjustment hole (55).

2. The positive and negative pressure plastic forming device according to claim 1, characterized in that: The moving assembly comprises a bidirectional screw (61), the middle portion of the bidirectional screw (61) is rotatably connected to the right side of the support frame (2), the outer side of the bidirectional screw (61) is threadedly connected to the right inner wall of the moving plate (51), the outer side of the middle portion of the bidirectional screw (61) is fixedly connected to a crank (62), and the left side of the crank (62) is arranged on the inner wall of the support frame (2).

3. The positive and negative pressure plastic forming device according to claim 1, characterized in that: A heat outlet hole is provided through the lower side of the bottom plate (53).

4. The positive and negative pressure plastic forming device according to claim 1, characterized in that: Two groups of movable plates (51) are provided, and the two groups of movable plates (51) are symmetrically arranged with the center line of the bidirectional screw (61) as the symmetry axis.

5. The positive and negative pressure plastic forming device according to claim 1, characterized in that: The upper portions of the left and right sides of the adjustment plate (54) are attached to the inner wall of the movable plate (51).

6. The positive and negative pressure plastic forming device according to claim 1, characterized in that: A sliding rod is provided on the left side of the support frame (2), and the sliding rod penetrates and slides on the left inner walls of the two groups of movable plates (51).

7. The positive and negative pressure plastic forming device according to claim 1, characterized in that: The support frame (2) is provided with a limit assembly near the inner wall of the crank (62), and the limit assembly includes an extrusion plate (71), which is slidably connected to the inner wall of the support frame (2), and the lower side of the extrusion plate (71) is attached to the upper side of the crank (62). The top of the extrusion plate (71) is rotatably connected to a pull rod (72), and the pull rod (72) slides on the inner wall of the support frame (2). The upper side of the extrusion plate (71) is elastically connected to the support frame (2) through a compression spring (73), and one end of the compression spring (73) is fixedly connected to the upper side of the extrusion plate (71), and the other end of the compression spring (73) is fixedly connected to the inner wall of the support frame (2).

8. The positive and negative pressure plastic forming device according to claim 7, characterized in that: The pull rod (72) is configured in an L shape.

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